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Prefix profile

Review current routes, sources, visibility and BGP change evidence for a prefix.

157.122.0.0/16

Currently validIPv4

Origin ASNAS17816

This profile is based on CHA.LA's maintained BGP route state, hourly aggregates and event history; fields without observations are shown as not recorded.
Last observed10/15/2026, 16:00:00CHA.LA BGP data
View BGP historyRPKI checkRDAP registration
Prefix
157.122.0.0/16
Current status
Currently valid
Origin ASN
AS17816
First observed
8/28/2026, 07:50:23
Last observed
10/15/2026, 16:00:00
Peer42Visible peers
Collector1Collectors
Announcements7Last 7 days, hourly aggregate
Withdrawals0Last 7 days, hourly aggregate
Origin ASN1Observed ASNs

Current routes and paths

42 observed
PrefixOrigin ASNAS pathPath lengthPeerCollectorStatus
157.122.0.0/16AS17816328840 327727 174 4837 178165102.208.105.2rrc00Currently valid
157.122.0.0/16AS178163549 3356 4837 178164208.51.134.248rrc00Currently valid
157.122.0.0/16AS1781650304 1299 4837 17816431.169.49.228rrc00Currently valid
157.122.0.0/16AS1781637989 56300 132132 10099 4837 178166203.123.48.6rrc00Currently valid
157.122.0.0/16AS1781624482 6453 4837 178164203.175.175.15rrc00Currently valid
157.122.0.0/16AS1781650300 3257 4837 178164176.12.110.8rrc00Currently valid
157.122.0.0/16AS1781649673 20485 4837 17816494.247.111.254rrc00Currently valid
157.122.0.0/16AS1781617639 5511 4837 178164202.69.160.152rrc00Currently valid
157.122.0.0/16AS1781658057 34549 5511 4837 178165194.50.92.251rrc00Currently valid
157.122.0.0/16AS1781655720 10099 4837 17816445.116.179.212rrc00Currently valid
157.122.0.0/16AS1781622652 1299 4837 17816445.61.0.85rrc00Currently valid
157.122.0.0/16AS1781645049 6696 5511 4837 178165194.28.97.2rrc00Currently valid
157.122.0.0/16AS17816852 3257 4837 178164154.11.12.212rrc00Currently valid
157.122.0.0/16AS1781613830 971 3356 4837 178165161.129.152.2rrc00Currently valid
157.122.0.0/16AS1781637721 174 4837 178164165.16.221.66rrc00Currently valid
157.122.0.0/16AS1781655720 23764 4134 4837 178165103.212.68.10rrc00Currently valid
157.122.0.0/16AS17816204092 198978 174 4837 17816589.234.186.6rrc00Currently valid
157.122.0.0/16AS1781661218 6939 4837 178164143.246.179.232rrc00Currently valid
157.122.0.0/16AS178164608 7575 1299 4837 178165203.119.104.1rrc00Currently valid
157.122.0.0/16AS1781649134 53356 6939 4837 17816523.129.32.61rrc00Currently valid
157.122.0.0/16AS17816202365 50673 174 4837 1781655.255.90.109rrc00Currently valid
157.122.0.0/16AS1781629504 39392 1299 4837 178165185.193.84.191rrc00Currently valid
157.122.0.0/16AS17816206499 34549 5511 4837 17816545.14.68.69rrc00Currently valid
157.122.0.0/16AS17816213241 9002 5511 4837 17816589.42.52.8rrc00Currently valid
157.122.0.0/16AS1781657381 42708 4837 178164193.150.22.240rrc00Currently valid
157.122.0.0/16AS1781657821 12586 3257 4837 178165193.160.39.1rrc00Currently valid
157.122.0.0/16AS1781620514 1299 4837 178164217.151.205.147rrc00Currently valid
157.122.0.0/16AS178161403 577 701 4837 178165198.58.198.252rrc00Currently valid
157.122.0.0/16AS1781620205 6939 4837 17816464.246.96.5rrc00Currently valid
157.122.0.0/16AS1781634549 5511 4837 17816480.77.16.114rrc00Currently valid
157.122.0.0/16AS1781634927 1299 4837 178164193.148.251.1rrc00Currently valid
157.122.0.0/16AS1781659919 12779 4837 1781645.178.95.254rrc00Currently valid
157.122.0.0/16AS1781638001 7473 6453 4837 178165202.150.221.37rrc00Currently valid
157.122.0.0/16AS1781614907 3356 4837 178164208.80.153.193rrc00Currently valid
157.122.0.0/16AS1781648185 3356 4837 178164195.90.96.2rrc00Currently valid
157.122.0.0/16AS1781658057 174 4837 178164193.33.94.251rrc00Currently valid
157.122.0.0/16AS17816216285 8280 6762 4837 17816584.54.49.1rrc00Currently valid
157.122.0.0/16AS178163333 1257 4837 178164193.0.0.56rrc00Currently valid
157.122.0.0/16AS1781644393 58057 6939 4837 17816549.12.70.222rrc00Currently valid
157.122.0.0/16AS178167018 3356 4837 17816412.0.1.63rrc00Currently valid
157.122.0.0/16AS1781649432 48362 1299 4837 178165195.128.231.254rrc00Currently valid
157.122.0.0/16AS1781634927 56655 4837 17816445.134.89.1rrc00Currently valid

Recent event window

Only peers and collectors that produced events in this hour are counted.

Last observed
10/11/2026, 16:00:00
Peers in window
1
Collectors in window
1
Average path length
4.0
Longest path
4

Announcement / withdrawal history

Latest 30
TimeEventOrigin ASNAS pathPeerCollector
10/13/2026, 07:05:49AnnouncementAS1781657821 12586 3257 4837 17816193.160.39.1rrc00
10/12/2026, 12:45:11AnnouncementAS1781657821 12586 3257 4837 17816193.160.39.1rrc00
10/12/2026, 06:15:15AnnouncementAS178164608 7575 1299 4837 17816203.119.104.1rrc00
10/11/2026, 16:15:22AnnouncementAS1781649673 20485 4837 1781694.247.111.254rrc00
10/11/2026, 16:15:02AnnouncementAS1781649673 20485 4837 1781694.247.111.254rrc00
10/11/2026, 16:15:02AnnouncementAS1781649673 12389 4837 1781694.247.111.254rrc00
10/11/2026, 16:05:17AnnouncementAS1781649673 20485 4837 1781694.247.111.254rrc00
10/9/2026, 13:20:32AnnouncementAS1781617639 5511 4837 17816202.69.160.152rrc00
10/9/2026, 09:00:03AnnouncementAS178164608 7575 1299 4837 17816203.119.104.1rrc00
10/9/2026, 09:00:00AnnouncementAS1781657821 12586 3257 4837 17816193.160.39.1rrc00
10/8/2026, 22:35:35AnnouncementAS17816328840 327727 174 4837 17816102.208.105.2rrc00
10/8/2026, 22:35:33AnnouncementAS1781614907 3356 4837 17816208.80.153.193rrc00
10/8/2026, 22:35:32AnnouncementAS178161403 577 701 4837 17816198.58.198.252rrc00
10/8/2026, 22:35:10AnnouncementAS178167018 3356 4837 1781612.0.1.63rrc00
10/8/2026, 17:55:23AnnouncementAS1781661218 6939 4837 17816143.246.179.232rrc00
10/8/2026, 11:25:15AnnouncementAS1781614907 3356 4837 17816208.80.153.193rrc00
10/7/2026, 17:55:08AnnouncementAS1781649134 53356 6939 4837 1781623.129.32.61rrc00
10/7/2026, 10:25:51AnnouncementAS1781629504 39392 1299 4837 17816185.193.84.191rrc00
10/7/2026, 10:25:09AnnouncementAS1781629504 15935 174 4837 17816185.193.84.191rrc00
10/4/2026, 09:55:08AnnouncementAS1781658057 34549 5511 4837 17816194.50.92.251rrc00
10/3/2026, 14:05:20AnnouncementAS1781637721 174 4837 17816165.16.221.66rrc00
10/3/2026, 09:20:03AnnouncementAS1781659919 12779 4837 178165.178.95.254rrc00
10/1/2026, 18:45:02Withdrawal——102.208.105.2rrc00
10/1/2026, 05:15:08AnnouncementAS178164608 1221 4637 6461 4837 17816203.119.104.1rrc00
10/1/2026, 00:25:26AnnouncementAS1781655720 23764 4134 4837 17816103.212.68.10rrc00
9/30/2026, 19:40:27AnnouncementAS17816852 3257 4837 17816154.11.12.212rrc00
9/30/2026, 17:55:04AnnouncementAS1781655720 6939 4837 17816103.212.68.10rrc00
9/30/2026, 11:45:29AnnouncementAS1781637721 174 4837 17816165.16.221.66rrc00
9/30/2026, 09:45:26AnnouncementAS1781649673 20485 4837 1781694.247.111.254rrc00
9/30/2026, 09:45:08AnnouncementAS1781649673 12389 4837 1781694.247.111.254rrc00

Hourly changes

SEVEN-DAY WINDOW · 2 time points
TimeAnnouncementsWithdrawalsPeerCollectorOrigin ASNAS path
10/11/2026, 16:00:00301114.0 / 4
10/8/2026, 22:00:00404114.5 / 5
CHA.LA BGP profileThis page shows collected RIPE RIS route state, hourly aggregates and announcement / withdrawal events. Origin ASNs, peers and collectors represent an observation view, not the complete global routing table.Data source: CHA.LA BGP data · Query window: last 7 days